Evolved Gas Analysis by Mass Spectrometry

Materazzi, Stefano; Vecchio, Stefano

doi:10.1080/05704928.2011.565533

Cited by 55 publications

(28 citation statements)

References 468 publications

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“…It has been demonstrated that during aging,p roteinaceous materials become highly thermally stable [20,21] and show very little solubility,c hallenging GC-MS and MS proteomics-based approaches that require an extraction of the proteinaceous material from the matrix. [25] Af irst sample (K1) was analysed by EGA-MS,s ubsampling the blue paint layer and the white preparation layer, separately.E GA profiles of the samples are shown in Figure 3. [25] Af irst sample (K1) was analysed by EGA-MS,s ubsampling the blue paint layer and the white preparation layer, separately.E GA profiles of the samples are shown in Figure 3.…”

Section: Methodsmentioning

confidence: 99%

Evolved Gas Analysis‐Mass Spectrometry to Identify the Earliest Organic Binder in Aegean Style Wall Paintings

Linn

Bonaduce

Ntasi³

et al. 2018

Angew Chem Int Ed

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An organic binder was identified in the painted fragments from the Canaanite palace of Tel Kabri, Israel. Recently dated to the late 18th century B.C.E. by C, Tel Kabri is the most ancient of the Eastern Mediterranean sites in which Aegean style paintings have been found. The application of pigments was suspected to be using an organic binding medium, particularly for the Egyptian Blue pigment. Samples of blue paint were examined using evolved gas analysis-mass spectrometry (EGA-MS) in order to overcome the analytical challenges imposed by highly degraded aged proteinaceous materials. Egg was identified as the binder based on the presence of hexadecanonitrile and octadecanonitrile, confirming the use of a secco painting technique. Lysozyme C from Gallus gallus was detected by proteomics analysis, confirming the presence of egg. To our knowledge, this is the earliest use of egg as a binder in Aegean style wall paintings.

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Section: Methodsmentioning

confidence: 99%

Evolved Gas Analysis‐Mass Spectrometry to Identify the Earliest Organic Binder in Aegean Style Wall Paintings

Linn

Bonaduce

Ntasi³

et al. 2018

Angew Chem Int Ed

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“…In the present study, we extended the thermal behavior investigation of this class of materials, studied previously only for hybrid containing 60 and 70 wt.% of PEG , on a wider range of composition, containing lower percentages of PEG 400: 6, 12, 24, and 50 wt.%. Furthermore, in order to have a close insight on the actual pathway (mechanism) undergoing all the investigated materials during thermal analysis experiments, the so‐called evolution gas analysis (EGA) is carried out by coupling a TG instrument to FTIR or mass spectrometry (MS) apparatuses . To this end, supplementary measurements were performed using a TG/FTIR device, and analysing at several temperatures the gaseous mixture evolved from the samples during the occurrence of the TG experiments.…”

Section: Introductionmentioning

confidence: 99%

Thermal behavior and dehydration kinetic study of SiO₂/PEG hybrid gel glasses

Ciprioti

Catauro²,

Bollino³

et al. 2017

Polymer Engineering & Sci

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Six different silica‐polyethylene glycol (SiO2/PEG) organic‐inorganic hybrid nanocomposites with different amounts of PEG 400 (6, 12, 24, 50, 60 and 70 wt.%) were synthesized by the sol‐gel technique. Their thermal behavior was studied by thermogravimetry (TG) and differential thermal analysis (DTA) under a flowing argon atmosphere in a wide temperature range and their behavior was compared with those of the related materials with 60 and 70 wt.% of PEG, whose results were reported in a previously study. To identify all physical and chemical processes occurring in these promising materials, the gases evolved during TG experiments were analyzed at characteristic constant temperatures by FTIR. These measurements revealed that all the materials undergo a two‐step dehydration (loosing water physically bound at temperature lower than 100°C) with overlapping of both TG and DTA curves, thus suggesting an identical behavior up to 200°C regardless the different content of PEG. A different behavior is observed at higher temperature, where three different exothermic effects were observed in the range 200–450°C accompanied by mass losses ranging from 6 to 37% for the SiO2/PEG hybrid materials. POLYM. ENG. SCI., 57:606–612, 2017. © 2017 Society of Plastics Engineers

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“…Mass spectroscopy analysis of released gases Evolution of gaseous species was studied by a TG/DTA analysis coupled with simultaneous EGA-MS measurements. The evolved gaseous species are represented by their characteristic ion fragments versus temperature over the thermal degradation of gel samples [17]. According to the EGA-MS results (Fig.…”

Section: Resultsmentioning

confidence: 99%

Formation of Ca–Zn–Na phosphate bioceramic material in thermal processing of EDTA sol–gel precursor

Bogdanovičienė

Cepenko

Traksmaa

et al. 2015

J Therm Anal Calorim

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In this study, investigation of the Ca-P-O, Ca:Zn-P-O, Ca:Na-P-O, and Ca:Zn:Na-P-O precursor gels prepared using EDTA as complexing agent and slightly different starting materials was performed. For this purpose, thermal decomposition of the gels was studied by TG/DTA-EGA/MS with following evolvement of H 2 O, CO 2 , NH 3 , and NO x gases. Besides, thermal decomposition products were characterized by Fourier transform infrared spectroscopy, X-ray diffraction analysis, and scanning electron microscopy. It was demonstrated that thermal decomposition of Ca-P-O acetate and Ca:Zn-P-O, Ca:Zn:Na-P-O acetate-nitrate gels is different. Thus, the results of thermal decomposition of Ca:Zn-P-O and Ca:Zn:Na-P-O gels showed that Zn and Na additives accelerate decomposition of the gels. In addition, Na substitution at Ca sites creates conditions for the formation of the orthophosphate composites at lower temperatures.

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Evolved Gas Analysis by Mass Spectrometry

Cited by 55 publications

References 468 publications

Evolved Gas Analysis‐Mass Spectrometry to Identify the Earliest Organic Binder in Aegean Style Wall Paintings

Evolved Gas Analysis‐Mass Spectrometry to Identify the Earliest Organic Binder in Aegean Style Wall Paintings

Thermal behavior and dehydration kinetic study of SiO₂/PEG hybrid gel glasses

Formation of Ca–Zn–Na phosphate bioceramic material in thermal processing of EDTA sol–gel precursor

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Evolved Gas Analysis by Mass Spectrometry

Cited by 55 publications

References 468 publications

Evolved Gas Analysis‐Mass Spectrometry to Identify the Earliest Organic Binder in Aegean Style Wall Paintings

Evolved Gas Analysis‐Mass Spectrometry to Identify the Earliest Organic Binder in Aegean Style Wall Paintings

Thermal behavior and dehydration kinetic study of SiO2/PEG hybrid gel glasses

Formation of Ca–Zn–Na phosphate bioceramic material in thermal processing of EDTA sol–gel precursor

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Product

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Thermal behavior and dehydration kinetic study of SiO₂/PEG hybrid gel glasses